Acer Veriton M490G Service Manual page 74

CPU_FAN: CPU Cooling FAN Power Connector
Pin
1
2
3
4
ATX1: ATX 24-pin Power Connector
Pin
1
2
3
4
5
6
7
8
9
10
11
12
SYS_FAN: System Cooling FAN Power Connector
Pin
1
2
3
ATX_12V: ATX 12V Power Connector
Chapter 5
Signal Name
GND
+12V
Sense
PWM
Signal Name
+3.3V
+3.3V
Ground
+5V
Ground
+5V
Ground
PWRGD
+5VSB
+12V
+12V
+3.3V
Signal Name
GND
+12V
Sense
Pin
1 Ground
2 Ground
3 +12V
4 +12V
Function
System Ground
Power +12V
Sensor
PWM
Pin
13 +3.3V
14 -12V
15 Ground
16 PS_ON
17 Ground
18 Ground
19 Ground
20 -5V
21 +5V
22 +5V
23 +5V
24 Ground
Function
System Ground
Power +12V
Sensor
Signal Name
Signal Name
66